GLOBAL ASPECTS OF ENDOGENOUS ORE FORMATION

The formation of ore is correlated with folding phases, the generation of explosive ring structures, the global deposition of black shale (c arbonic) formations, geochemically anomalous sediments, and biotic cri ses. Analysis of all these events and their rhythms suggests that they are closely related to periods of a general increase in the Earth's e ndogenous activity. A mechanism that causes these phenomena involves t he interaction of the liquid outer core with the solid inner core, who se growth results in an increase in fluid pressure in the core and pro vokes strain on the Earth's silicate layers. The strain is discharged periodically in pulses of core degassing accompanied by the ascending migration of ore metals with fluids. In the context of this migration, the periodic systems of chemical elements are deduced, which correspo nd to different redox and thermal conditions of chemical reactions. Th e disproportionation reactions among the migrating species of carbon a nd ore metals in fluid flows ascending from the liquid core to the Ear th's mantle and crust are very important. These reactions occur in pri marily hydrogen-rich core-derived fluid flows (H-2 + CO = C + H2O; H-2 + 3CO = 2C + CO2 + H2O, etc.) and result in carbon release and the fo rmation of H2O fluids. This favors the periodic development of ore-bea ring magmatism in the Earth's mantle and crust, the generation of expl osive ring structures on the platforms, and the formation of black sha le in the sedimentary cover.